Steam-boiler superheater.



H. D. TAYLOR. STEAM BOILER SUPERHEATER. APPLIOATION FILED JUNE 29, 1909.

Patented Ja11.9, 1912.

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STEAM BOILBR SUPERHEATER. APPLIGATION FILED JUNE 29, 1909.

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STEAM-BOILER SUPERHEATER.

Specification of Letters Patent.

Patented J an. 9,1912.

Application led June 29, 1909. Serial No. 504,957.

To all whomit may concern:

Be it known that I, HOWARD D. TAYLOR, a citizen of the United States,and a resident of the city of Reading, in the county of Berks and Stateof Pennsylvania, have invented certain new and useful Improvements inSteam-Boiler Superheaters, of which the following is a specification.

My invention relates to steam boilers 1n which a portion of the boilershell 1s utilized as a superheating section by provldi'ng for thepassage of the steam in contact with the fire-tubes therein prior to itsdelivery from the boiler; and it consists in certain improvements in theconstruction and ar rangement of the superheater section as hereafterfully described in connection with the accompanying drawings andspecifically pointed out in the claim.

Figure l is a longitudinal'sectlon of a portion of a boiler having myinvention applied thereto. Fig. 2 is a cross-sectional View on the line2-2 of Fig. 1.

The boiler indicated is of the locomotive type, and the forward portiononly thereof is shown as necessary to the proper setting fort-h of myinvention.

The boiler shell 5 is provided at its forward end with a smoke boxextension 6 and a flue sheet 7 to which the flues 8 lead from the firebox as usual. The steam dome ordinarily employed, is indicated at 9,with a steam 'pipe 10 leading therefrom.

My invention relates to the improved construction and arrangement of theforward end of the boiler shell and of the steam controlling meansprovided in connection therewith for insuring the effective superheating of the steam taken from the main body of the boiler, prior toits delivery to the engine supply pipes 1l; which structure will now bedescribed with reference to the specific sho-wing of the drawing.

A superheater section 2O is formed rearward of the end flue sheet 7 byan inter mediate partition fluesheet 21 in said shell; which section isespecially anranged as hereafter described to serve as a superheater forthe steam supplied thereto from the main body of theboiler. This supplyas shown is received from the dome 9, through the steam-pipe 10 whichconnects with an aperture 22 in the upper portion of the fiue sheet i21. Located in the superheating boiler section 20, just forward of andparallel with the apertured flue sheet 21, is a partition wall-plate 30extending to near the bottom of the boiler shell section 20 and forminga down-flow passage 31 between it and said flue sheet, for steamadmitted thereto through the aperture 22. And extending forward fromsaid wallplate 30, above the flues, is a horizontal roof plate 32covering said fiues and forming a lower superheating compartment 33 andan upper storage chamber 34; said chamber being in communication withthe steam passage 3l through said superheating compartment 33 and anopening 35 at the forward end of said horizontal roof plate 32. Toprovide for effectively utilizing the superheating surface of the fluesa series of baflie-plates 36, 37 are provided in the superheatingcompartment 33 below the roof plate 32, said plates being extendedlaterally beyond the iues but not to the side walls of the boiler shell,and the outer edges thereof being provided with spacing flanges 38between the plates; said ianges forming an insulating partition toprevent contact of the steam with the shell; and to more effectivelymaintain the temperature of the superheated steam in the storage chamber34 the upper portion of the partition wall 30 is formed as shown with anadditional spaced-apart partition plate 30a.

The superheated-steam storage chamber 34, which is thus eifectuallyseparated from the main body of the boiler, is used as a direct sourceof supply for the engines through the exit pipe 40; the throttle valve41 for controlling the flow being located in said chamber and operatedby a rod 42 extending through the partition wall 30, 3()a and thepartition flue sheet 21 as shown.

The cylindrical superheater section of the boiler shell is formedwithout a dome, the throttle valve body 41, which is formed integralwith the usual T-head 43 thereof located against the outer face of theflue sheet 7 being adapted to be inserted or removed through the iiuesheet aperture 44.

What I claim is A boiler having a partition liuc sheet therein forming acylindrical superheater section rearward of the smoke-box flue sheet, alongitudinal partition in said section forming a storage chamber thereinabove the ues, and a series of vertical baille plates in said sectionextending across the flues; the outer edges of said plates beingprovided With spacing anges extending between the Y plates and forminginsulatin substantially as described.

In testimony whereof, I aHiX my signature, in the presence of tWoWitnesses.

HOWARD jD. TAYLOR.

g partitions Witnesses:

D. M. STEWART, W. G. STEWART.

Copies of this patent may be obtained forV ve cents each, by`addressing-the Commissioner of Patents Washington, D. C.

